CN215063846U - Counter-flow cooling tower with uniform water distribution - Google Patents

Abstract

The utility model discloses an even counter-current cooling tower of water distribution, include the tower body, locate water retaining device in the tower body, locate fan blade in the tower body, be used for the drive fan blade pivoted driving motor, be used for the water spray system of water distribution uniformity, locate packing layer in the cooling tower, locate inlet port on the tower body and locating outlet pipe on the tower body, water spray system is including locating the suction pump of tower body bottom, locating inlet tube in the tower body, locating ball shower nozzle on the inlet tube, locating water jet on the ball shower nozzle, locate reposition of redundant personnel cover in the tower body, locate reposition of redundant personnel air vent on the cover and be used for the reposition of redundant personnel structure of water distribution.

Description

Counter-flow cooling tower with uniform water distribution

Technical Field

The utility model belongs to the technical field of the cooling tower, especially, relate to an even counter-current cooling tower of water distribution.

Background

The cooling tower is a device which uses water as circulating coolant, absorbs heat from a system and discharges the heat to the atmosphere so as to reduce the water temperature; the cold is an evaporation and heat dissipation device which utilizes the principle that water is in flowing contact with air and then carries out heat exchange to generate steam, the steam volatilizes and takes away heat to achieve evaporation and heat dissipation, convection heat transfer, radiation heat transfer and the like to dissipate waste heat generated in industry or refrigeration air conditioners to reduce the water temperature so as to ensure the normal operation of the system, and the device is generally barrel-shaped and is named as a cooling tower.

However, most of the existing cooling towers directly spray water onto the packing layer, and the water is often discharged from the water outlet pipe without being fully contacted with air for cooling, so that the cooling effect of the cooling tower is poor, and the normal operation of working equipment such as corresponding industrial facilities or refrigeration air conditioners is affected.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome prior art not enough, provide an even counter-current cooling tower of water distribution that cooling effect is good.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a counter-flow cooling tower with uniform water distribution comprises a tower body, a water retainer arranged in the tower body, fan blades arranged in the tower body, a driving motor for driving the fan blades to rotate, a water spraying system for uniform water distribution, a packing layer arranged in the cooling tower, an air inlet arranged on the tower body and a water outlet arranged on the tower body, wherein the water spraying system comprises a water suction pump arranged at the bottom of the tower body, a water inlet pipe arranged in the tower body, a ball nozzle arranged on the water inlet pipe, a water spraying hole arranged on the ball nozzle, a flow distribution cover arranged in the tower body, an air vent arranged on the flow distribution cover and a flow distribution structure for uniform water distribution; through the arrangement of the water spraying system, the external hot water is conveyed into the tower body through the water inlet pipe along with the water suction pump, and part of water is uniformly sprayed on the packing layer under the guidance of the water spraying holes; meanwhile, the other part of water is firstly sprayed on the flow dividing cover and then falls into the packing layer through reflection and flow guiding of the flow dividing cover so as to avoid that the water cannot be uniformly sprayed to the peripheral area of the packing layer due to insufficient water power and simultaneously avoid that overlarge water power is directly sprayed to the inner wall of the tower body to form wall flow, thereby effectively realizing uniform water distribution of the cooling tower and ensuring the cooling effect of the cooling tower; in addition, the water flow also forms a layer of water film on the flow dividing cover, and when the air flow passes through the vent holes, the air flow exchanges heat with the water film to realize pre-cooling, so that the cooling efficiency of the cooling tower is further improved.

Preferably, the water inlet pipe comprises a main pipe part, a blocking platform arranged on the main pipe and a spiral pipe part arranged in the filler layer; through the structure setting of inlet tube, the inlet tube coil in the packing layer, can make rivers carry out the heat exchange with the intraformational air current of packing in advance before spraying to form spiral turriform, slow down the whereabouts of rivers, thereby further make rivers and air current fully contact and heat exchange, further ensure cooling tower's cooling efficiency.

Preferably, the spiral pipe part is provided with a boss and an outflow hole arranged on the boss; through the setting of boss and play discharge orifice on the spiral portion, can be when effectively increasing the heat exchange area between inlet tube and the air current, rivers can slowly permeate the packing layer through a discharge orifice to further with water evenly distributed in the packing layer, further guarantee the cooling effect of cooling tower.

Preferably, the flow dividing structure comprises a flow dividing shaft arranged on the flow dividing cover, a frustum arranged on the flow dividing shaft, a flow dividing paddle arranged on the frustum, a water jetting hole arranged on the ball nozzle and a slow flow component used for controlling water flow to fall uniformly; through the setting of reposition of redundant personnel structure is followed along with rivers spout the water hole that jets at ball shower nozzle top to on the frustum, rivers can disperse under the direction of frustum, and the drive of reposition of redundant personnel axle along with driving motor simultaneously rotates in step the reposition of redundant personnel oar rotates, rivers can be struck the dispersion evenly, through the direction and the rivers self action of gravity of reposition of redundant personnel cover, evenly fall extremely in the filler layer to further guarantee that the water distribution is even, guarantee the cooling effect of cooling tower.

Preferably, the flow retarding assembly comprises a flow baffle arranged on the flow dividing cover, a flow baffle hole arranged on the flow baffle, a flow guide plate arranged on the flow baffle and a flow guide hole arranged on the flow guide plate, wherein the flow guide plate is an arc-shaped plate with a convex middle part and concave two sides; through the arrangement of the flow slowing assembly, the flow baffle can slow down water flow flowing to the inner wall of the tower body, and partial water flow can fall along the flow baffle, so that the water flow is prevented from directly flowing to the inner wall of the tower body along the flow dividing cover, and the water flow is further ensured to uniformly fall into the filler layer from the flow dividing cover; simultaneously, keep off and flow board and guide plate and can connect and form interim storage tank, rivers can converge in the storage tank temporarily to through water conservancy diversion hole and guide plate to rivers secondary distribution water distribution, thereby further guarantee that the water distribution is even, guarantee the cooling effect of cooling tower.

Preferably, a plurality of convex edges are arranged on the guide plate; through the arrangement of the convex edges, the falling and the flowing of the water flow can be further slowed down, the uniform water distribution is ensured, and the cooling effect of the cooling tower is ensured; meanwhile, the convex ribs can further increase the contact area of the air flow and the water flow when the air flow passes through the flow dividing cover, so that the surrounding efficiency of the cooling tower is further improved.

To sum up, the utility model has the advantages of it is following: through water injection system's setting can evenly spout some water downwards the direction of hole for water spraying is located on the packing layer, some water meeting then can fall into the packing layer through the reflection and the water conservancy diversion subdividing of reposition of redundant personnel cover to avoid hydraulic power not enough to lead to unable even spraying to the peripheral region of packing layer, avoid hydraulic power too big rivers directly to spout the condition that forms the wall flow on the tower body inner wall simultaneously, effectively realize that the water distribution of cooling tower is even, guarantee the cooling effect of cooling tower.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic sectional view of the present invention.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Fig. 4 is a partially enlarged view of fig. 2 at B.

Fig. 5 is a partial sectional view of the spiral pipe portion.

Detailed Description

As shown in fig. 1-5, a counter-flow cooling tower with uniform water distribution comprises a tower body 1, a water eliminator 11, fan blades 12, a driving motor 13, a water spraying system, a packing layer 14, an air inlet 15 and a water outlet pipe 16, wherein the top of the tower body 1 is provided with an air outlet 17; the water eliminator 11 is fixedly arranged in the cooling tower, the water eliminator 11 is in the prior art and can be a common wet film water eliminator or an aluminum alloy water eliminator; the fan blades 12 are rotatably arranged above the water retainer 11, the driving motor 13 is fixedly arranged at the top of the tower body 1, and the output shaft of the driving motor is fixedly connected with the fan blades 12; the filler layer 14 is fixedly arranged below the water eliminator 11, and the filler layer 14 can be a common PVC honeycomb filler; an air inlet hole 15 is formed in the side wall of the tower body 1, and a plurality of rows of air inlet holes 15 are formed in the circumferential direction of the side wall of the tower body 1; the water outlet pipe 16 is fixedly connected to the bottom of the tower body 1.

Specifically, the water spraying system comprises a water suction pump 21, a water inlet pipe 22, a ball nozzle 23, a water spraying hole 24, a diversion cover 25, a vent hole 26 and a diversion structure, wherein the water suction pump 21 is fixedly arranged at the bottom of the tower body 1; the water inlet pipe 22 is connected with the water pump 21.

Further, the water inlet pipe 22 comprises a main pipe part 31, a blocking platform 32 and a spiral pipe part 33; the main pipe part 31 penetrates through the tower body 1, one end of the main pipe part is connected to the water pump 21, and the other end of the main pipe part is fixedly connected with the ball nozzle 23; the water spray holes 24 are arranged on the ball spray head 23 and are provided with a plurality of rows along the circumferential direction of the ball spray head 23; the blocking platform 32 is fixedly connected in the main pipe part 31 to limit water from directly flowing through the main pipe part 31; the spiral pipe part 33 is positioned in the packing layer 14 and consists of two conical spiral coiled pipes which are centrosymmetric and are mutually communicated, and two ends of the spiral pipe part 33 are communicated with the main pipe part 31 and are respectively positioned above and below the plugging platform 32; a plurality of bosses 331 are fixedly connected to the side wall of the spiral pipe portion 33, and a plurality of bosses 331 are arranged along the spiral direction of the spiral pipe portion 33; the boss 331 is provided with a plurality of outlet holes 332.

Further, the diversion cover 25 is fixedly connected to the side wall of the tower body 1 and covers the ball nozzles 23, a plurality of groups of vent holes 26 are formed in the circumferential direction of the side wall, and a plurality of vent holes 26 are formed in each group along the radial direction of the separation cover.

Further, the flow dividing structure comprises a flow dividing shaft 41, a frustum 42, a flow dividing paddle 43, a water jetting hole 44 and a flow slowing assembly, wherein the flow dividing shaft 41 is arranged in the water eliminator 11 in a penetrating manner, and one end of the flow dividing shaft is fixedly connected to a driving shaft of the driving motor 13; the frustum 42 is fixedly connected to the diversion shaft 41, and the frustum 42 is located in the diversion cover 25 and near the top of the diversion cover 25; the plurality of the diversion paddles 43 are fixedly connected to the frustum 42 and arranged around the circumference of the frustum 42; the water jet hole 44 is opened at the top of the ball nozzle 23 and is opposite to the frustum 42.

Further, the flow slowing assembly comprises a flow baffle plate 51, a flow baffle hole 52, a flow baffle plate 53 and a flow guide hole 54, wherein the flow baffle plate 51 is fixedly connected to the inner wall of the flow dividing cover 25 and is positioned on the hole edge of a part of the vent holes 26 far away from the center of the flow dividing cover 25, and a plurality of flow baffle holes 52 are formed in the flow baffle plate; the baffle plates 51 in the area where each group of vent holes 26 are located are arranged at intervals, that is, only one baffle plate 51 is arranged at the edge of the adjacent vent hole 26; the baffle plates 51 of the areas where the vent holes 26 of the adjacent groups are located are arranged in a staggered manner, that is, only one baffle plate 51 is arranged along the opening edge of the vent hole 26 adjacent to the circumferential direction of the flow dividing cover; the flow baffle 53 is fixedly connected to the bottom of the flow baffle 51, and two ends of the flow baffle are respectively fixedly connected to the adjacent flow baffles 51 positioned at the edge of the same group of the vent holes 26, so as to form a temporary flow storage tank through connection; the guide plate 53 is an arc-shaped plate with a convex middle part and concave two sides, and a plurality of convex ribs 55 are arranged on the guide plate; the rib 55 is provided with a plurality of flow guiding holes 54.

The utility model discloses a concrete implementation process as follows: as the water pump 21 transports the external hot water into the tower body 1 through the water inlet pipe 22, part of the water flow flows into the packing layer 14 under the guidance of the spiral pipe part 33 to exchange heat with the air flow in the packing layer 14 in advance, and then under the guidance of the water spraying holes 24, part of the water is uniformly sprayed on the packing layer 14, and the other part of the water is sprayed on the shunting cover 25 first and falls into the packing layer 14 through reflection and diversion of the shunting cover 25; meanwhile, part of water flow is sprayed onto the frustum 42 from the water spray holes 44 at the top of the ball spray head 23, the water flow can be dispersed under the guidance of the frustum 42, the diversion shaft 41 synchronously rotates along with the driving of the driving motor 13 to drive the diversion paddles 43 to rotate, the water flow can be uniformly beaten and dispersed, and can uniformly fall into the packing layer 14 through the circular flow guidance of the diversion cover 25 and the flow baffle plates 51 thereon, so that the air flow is fully contacted with the water, and the cooling effect of the cooling tower is ensured.

Claims (6)

1. The utility model provides an even counter-current cooling tower of water distribution, includes tower body (1), locates water retainer (11) in tower body (1), locate fan blade (12) in tower body (1), be used for the drive fan blade (12) pivoted driving motor (13), be used for the water spray system of uniform water distribution, locate packing layer (14) in the cooling tower, locate inlet port (15) on tower body (1) and locate outlet pipe (16) on tower body (1), its characterized in that: the water spraying system comprises a water suction pump (21) arranged at the bottom of the tower body (1), a water inlet pipe (22) arranged in the tower body (1), a ball nozzle (23) arranged on the water inlet pipe (22), a water spraying hole (24) arranged on the ball nozzle (23), a shunting cover (25) arranged in the tower body (1), and a shunting structure arranged on the air vent (26) arranged on the shunting cover (25) and used for uniform water distribution.

2. The counter-flow cooling tower with uniform water distribution according to claim 1, characterized in that: the water inlet pipe (22) comprises a main pipe part (31), a blocking platform (32) arranged on the main pipe and a spiral pipe part (33) arranged in the packing layer (14).

3. The counter-flow cooling tower with uniform water distribution according to claim 2, characterized in that: the spiral pipe part (33) is provided with a boss (331) and an outflow hole (332) arranged on the boss (331).

4. The counter-flow cooling tower with uniform water distribution according to claim 1, characterized in that: the reposition of redundant personnel structure is including locating reposition of redundant personnel axle (41) on reposition of redundant personnel cover (25), locating frustum (42) on reposition of redundant personnel axle (41), locating reposition of redundant personnel oar (43) on frustum (42), locate penetrate water hole (44) on ball shower nozzle (23) and be used for controlling the even slow subassembly that flows that falls of rivers.

5. The counter-flow cooling tower with uniform water distribution according to claim 4, characterized in that: the flow slowing assembly comprises a flow baffle plate (51) arranged on the flow dividing cover (25), a flow stopping hole (52) arranged on the flow baffle plate, a flow guide plate (53) arranged on the flow baffle plate (51) and a flow guide hole (54) arranged on the flow guide plate (53), wherein the flow guide plate (53) is an arc-shaped plate with a convex middle part and concave two sides.

6. The counter-flow cooling tower with uniform water distribution according to claim 5, characterized in that: the guide plate (53) is provided with a plurality of ribs (55).

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